Abstract
ABSTRACT The aimed of this study was to evaluate the attenuating action of nitrogen doses on leaf cell membrane damage, dry biomass production and leaf area in the formation of yellow passion fruit seedlings irrigated with saline water. Treatments were arranged in a randomized block design, in split plots, corresponding to five levels of irrigation water salinity (plot) (ECw) (0.3; 1.0; 1.7; 2.4 and 3.1 dS m-1) and five doses of nitrogen fertilization (subplot) (60; 80; 100; 120 and 140% of 300 mg of N dm-3), which were repeated in five blocks. Plants were grown in pots (Citropote®) with a volume of 3,780 mL, which were filled with a mixture of soil, aged bovine manure and sawmill residue (shaving) in a ratio of 2:1:0.5, respectively. Waters with different levels of salinity were applied from 40 to 85 days after sowing, when the plants were in transplanting conditions. At 85 days after sowing, the percentage of cell damage based on electrolyte leakage, variables of dry biomass, leaf area and specific leaf area were evaluated. Increment in irrigation water salinity reduces the biomass accumulation of yellow passion fruit seedlings; The increase in nitrogen dose did not mitigate the effect of salinity, which reduced cell membrane integrity, making the plant more sensitive.
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Claims 3
Claim · model-written summary
Increasing irrigation water salinity reduced biomass accumulation of yellow passion fruit seedlings.
- Taxon
- yellow passion fruite0
- Treatment
- irrigation water salinitye0
- Outcome
- biomass accumulatione0
- Direction
- reducese0
Not reportedComparator
Verbatim
e0“Increment in irrigation water salinity reduces the biomass accumulation of yellow passion fruit seedlings”
Claim · model-written summary
Increasing the nitrogen dose did not mitigate the effect of salinity on yellow passion fruit seedlings.
- Taxon
- yellow passion fruitt0
- Treatment
- nitrogen dosee0
- Outcome
- effect of salinitye0
- Direction
- did not mitigatee0
Not reportedComparator
Verbatim
t0“YELLOW PASSION FRUIT”
e0“The increase in nitrogen dose did not mitigate the effect of salinity”
Claim · model-written summary
Salinity reduced cell membrane integrity, making the yellow passion fruit plant more sensitive.
- Taxon
- yellow passion fruitt0
- Outcome
- cell membrane integritye0
- Direction
- reducede0
- Qualifier
- making the plant more sensitivee0
Not reportedTreatmentComparator
Verbatim
t0“YELLOW PASSION FRUIT”
e0“which reduced cell membrane integrity, making the plant more sensitive”
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